STR-999: INTELLIGENT MONITORING SYSTEM REVEALS NEW INFORMATION ABOUT THE CHAMPLAIN BRIDGE
Bibliographic record
Abstract
The Champlain Bridge, constructed in 1957, is one of Canada’s busiest and most economically critical bridges. This 3.4km-long bridge consists of as many as 50 simply supported spans, 50 to 53 m long, plus an elevated truss structure over the Saint Lawrence Seaway. Each span has a cross-section of seven precast post-tensioned girders supporting cast-in-place infill strips that constitute a deck with six traffic lanes. Like many other structures, Champlain Bridge is subjected to environmental, traffic or hydrological loads, which adversely affect the structural condition of the bridge. This structural degradation is further accelerated for the Champlain Bridge due to Montreal’s cold climate, with snowfall and windy conditions, in addition to seasonal salting on the concrete deck. Consequently, structural degradation has been observed due to the corrosion of some of the post-tensioned strands in the main edge girders on the upstream and downstream side.
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.003 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.001 | 0.000 |
| Insufficient payload (model declined to judge) | 0.012 | 0.006 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".